/// <summary>
/// FrameThickness
/// Extends the Frame(Non Client Area) of the Window/Form into client area
/// </summary>
/// <param name="left">Left margin to which extent the frame needs to be extended from left side</param>
/// <param name="right">Right margin to which extent the frame needs to be extended from right side</param>
/// <param name="top">Top margin to which extent the frame needs to be extended from top side</param>
/// <param name="bottom">Bottom margin to which extent the frame needs to be extended from bottom side</param>
/// <param name="windowHandle">Handle to client window/form</param>
/// <returns>0 for Success</returns>
internal static int FrameThickness(int left, int right, int top, int bottom, IntPtr windowHandle)
{
// We only enable to set FrameThickness if DWM Composition is enabled.
if (!UnsafeNativeMethods.DwmIsCompositionEnabled())
return -1;
// Create a margin structure
SafeNativeMethods.MARGINS margins = new SafeNativeMethods.MARGINS();
margins.cxLeftWidth = left;
margins.cxRightWidth = right;
margins.cyTopHeight = top;
margins.cyBottomHeight = bottom;
// Extend the Frame into client area
return UnsafeNativeMethods.DwmExtendFrameIntoClientArea(windowHandle, ref margins);
}
internal static extern int DwmExtendFrameIntoClientArea(
IntPtr hwnd,
ref SafeNativeMethods.MARGINS m);
void ActivateGlass()
{
PresentationSource p = PresentationSource.FromVisual(this);
HwndSource s_hwndSource = p as HwndSource;
if (s_hwndSource != null)
{
s_hwndSource.CompositionTarget.BackgroundColor = Color.FromArgb(0, 0, 0, 0);
handle = s_hwndSource.Handle;
}
SafeNativeMethods.RECT r = new SafeNativeMethods.RECT();
UnsafeNativeMethods.GetClientRect(handle, ref r);
IntPtr hrgn = UnsafeNativeMethods.CreateRectRgn(0, 0, 1, 1);
SafeNativeMethods.DWM_BLURBEHIND bb = new SafeNativeMethods.DWM_BLURBEHIND();
bb.dwFlags = SafeNativeMethods.DwmBlurBehindDwFlags.DWM_BB_ENABLE | SafeNativeMethods.DwmBlurBehindDwFlags.DWM_BB_BLURREGION;
bb.fEnable = true;
bb.hRgnBlur = hrgn;
UnsafeNativeMethods.DwmEnableBlurBehindWindow(handle, ref bb);
SafeNativeMethods.MARGINS mar = new SafeNativeMethods.MARGINS();
mar.cyTopHeight = 37;
UnsafeNativeMethods.DwmExtendFrameIntoClientArea(handle, ref mar);
//Need to make the Window size dirty.
this.WindowState = WindowState.Minimized;
this.WindowState = WindowState.Normal;
}